You can't. you have to transfer it from ruby, sapphire, or emerald.
you can only get it from ruby/emerald/sapphire. i suggest cloning a registeel in emerald and then send the clone to pearl
You can not catch Registeel in these games. You have to catch him and the other regis on Pokemon Emerald, Ruby, or Sapphire and migrate them to Pal park your wrong go to route 228. there you will find it.
you can't catch any of the three regis on any DS game except platnium.sorry:(
Registeel is unobtainable from Pokemon Diamond and Pearl. You have to migrate it from Pokemon Ruby, Sapphire, or Emerald.
There is no way to send regice regirock and registeel from ranger to pearl. the only Pokemon that can be transferred from ranger to pearl is the manaphy egg.
You can't because regigigas is a 4th gen pokemon. If you want a regigigas then you will have to migrate Regice, registeel and regirock to Diamond, Platinum or pearl
nope
NO you cant catch syther in Pokemon pearl
You can't catch a charizard in pokemon pearl.
You have to trade or migrate it from Ruby, Sapphire or Emerald.
You have to have regiice, registeel and regirock to be able to fight him
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond